For the function , the correct description of the range is y > 0. Here’s why:
Analysis
1.Function Definition:
This is an exponential function with base 3.
2.Output Values:
Exponential functions of this form always yield positive values for all real numbers x. This is because:
The base 3 is greater than 1.
Raising 3 to any real number x (whether positive, negative, or zero) will result in a positive number.
3.Behavior at Extremes:
As ,